I got my bushings out and in using a piece of 1/2" x 13 threaded rod long enough to pass through both bushings plus a few inches, two 1/2" x 13 nuts and some heavy washers that were larger that the diameter od the bushings. To remove, I placed nuts well inside the bushings on both sides of the CA and placed the large, heavy washers against the bushings. Then (after soaking the metal part of the bushing with some penetrant), I slowly turned the nuts towards the bushings. They slowly came out quite easily. I sucked the new ones into the CA with the reverse process. Worked great and the supplies only cost a few dollars.